DevTools: Show GPU utilization bar on timeline

Source/core/inspector/TimelineRecordFactory.cpp

Index: Source/core/inspector/TimelineRecordFactory.cpp
diff --git a/Source/core/inspector/TimelineRecordFactory.cpp b/Source/core/inspector/TimelineRecordFactory.cpp
index a60515b045844a83b820961d771620d58d418923..9a557a68d6a4bcdbc8911c44594ef0df547d9a9b 100644
--- a/Source/core/inspector/TimelineRecordFactory.cpp
+++ b/Source/core/inspector/TimelineRecordFactory.cpp
@@ -220,6 +220,13 @@ PassRefPtr<JSONObject> TimelineRecordFactory::createAnimationFrameData(int callb
     return data.release();
 }
 
+PassRefPtr<JSONObject> TimelineRecordFactory::createGPUTaskData(unsigned ownerPID)
+{
+    RefPtr<JSONObject> data = JSONObject::create();
+    data->setNumber("ownerPID", ownerPID);
+    return data.release();
+}
+
 static PassRefPtr<JSONArray> createQuad(const FloatQuad& quad)
 {
     RefPtr<JSONArray> array = JSONArray::create();